Light-signal.



D. M. CROOKE'R'.

LIGHT SIGNAL. APPLICATION HLED DEC- 2, 1913.

1 ,1 89,065 "Patented Ju he 27, 1916'.

THE COLUMBIA PIANQGRAFH cm, WASHINGT ON, D. c.

UNITED STATES PATENT OFFICE.

DAVID M. CROOKER, OF PORT HURON, MICHIGAN.

LIGHT-SIGNAL.

T 0 all whom 2'2! may concern.

Be it known that LDavm M. CRooKER, a full citizen of the United States,residing at Port Huron, in the county of St. Clair and State ofMichigan, have invented new and useful Improvements in Light-Signals, ofwhich the following is a specification.

The invention relates to an improvement in light signals, particularlyfor nautical use and constructed for flashing simultaneously with theoperation of the usual audi ble signal, as a whistle blast.

The main object of the present invention is the provision of a visualsignal in the form of a flashing light which is automatically actuatedin the sounding of the whistle, so that the alarms are simultaneouslygiven in order to insure an effective signaling at night or in foggyweather.

The invention in the preferred form of details will be described in thefollowing specification, reference being had particularly to theaccompanying drawings, in which 2- Figure 1 is a broken elevation,partly in section, illustrating the. application of the improvement.Fig. 2 is an enlarged broken sectional view showing the signal.

In the accompanying drawings, 1 represents generally the vessel havingthe usual whistle 2 supplied with steam or other power through a pipe 3,the valve of the Whistle being operated by a lever 4;, spring actuatedin one direction through the medium of the spring The lever 1 isactuated through a pull cord 6 extending into the engine room 7 orthrough a pull cord 8 connected to the foot lever 9 in the pilot house10, whereby the whistle may be sounded from either position.

Rising from the deck or other convenient part of the vessel preferablyadjacent the whistle is a mast 11 carrying one or more signals 12. Thesignals, if more than one is used, are in series circuit with the sourceof energy, as battery 13, arranged in the engineroom through conductors14: and 15 leading from the battery to the signal and to the switch 16and the conductor 17 leading from the switch to the signal. The switchincludes a fixed member 18 and a m0vable Specification 'or LettersPatent.

Patented June 27, 1916.

Application filed December 2 1913. Serial No. 804,137.

member 19 which latter is in'the form of a lever connected through themedium of a rod 20 with the whistle lever 4, the arrangement of theparts being such that when the lever 41 is operated to sound the whistlethe circuit including the conductors 1 1, 15 and 17 is closed toenergize the signal. The signal and source of energy are also in circuitwith the hand switch 20 arranged in the pilot house 10, conductors 21and 22 leading from the switch to the battery and signal re spectively,the conductor 14 of the first men tioned circuit serving as remainingconductor of the last mentioned circuit. The lever 9 for operating thewhistle in the pilot house also controls the switch 23 from whichconductors 24: and 25 extend through the conductors 21 and 14 of theother circuits.

From the above construction, it will be obvious that of each operationof the lever 4 to sound the whistle either by means of the cord 6 offoot lever 9 the light signal will be correspondingly flashed, remainingenergized during continuation of the audible alarm and that in the eventof the failure of the whistle to operate from any cause, the visualalarm will be actuated through the medium of the switch 20 By providingthe switch 23 and the switch 18 in the independent circuits connectedwith the visual signal and operating the said switches by means foractuating the audible signal, it is at once apparent that should eitherof the flexible members 6 and 8 stretch or break, thus disconnecting theoperating means for the switch 18 and the audible signal, the visualsignal could still be operated by depressing the foot lever 9, orgrasping the rod 20 and exerting a clownward pull.

In Fig. 2 I have shown the visual alarm in the form of a glass spherewithin which are arranged low and high candle power incandescent lamps27 in series.

lVhat is claimed is A device of the kind described comprising aplurality of lamps, an audible signal comprising a whistle having avalve, a spring operated lever controlling the valve, a battery circuit,a pull cord for operating said L. said lever, said lamps and switchbeing inlamp, and a cable connecting said footpressed switch to saidlever.

In testimony whereof I atfix my signature in presence of two witnesses.

DAVID M. CROOKER. Witnesses GEO. W. LUMBY, W. H. BUZZARD.

Copies of this patent may be obtained for five cent: each, by addrezsingthe Wnhington, D. G."

cluded in said circuit, a foot-pressed switch, contacts engaged by saidfoot-pressed switch and included in said circuit, to operate saidCommissioner of Patents,

